N. Chaitawittanun, D. E. . Bhanthumnavin, D. Bhanthumnavin, and K. Meekun, “Predictors of Attitude towards Preparation for Quality Aging in Undergraduate Students”, Int J Innov Educ Res, vol. 8, no. 10, pp. 396–404, Oct. 2020, doi: 10.31686/ijier.vol8.iss10.2693.